/* ============================================================
   mocha — contact.css
   おといあわせ ｜ ふきだし、まってます。
   Page-specific layout on top of the shared tokens/utilities.
   Halftone ink-in panels, speech-bubble comic language, one
   strawberry accent. All colors + type from :root tokens.
   ============================================================ */

/* ---- shared accent word ---- */
.c-accentword {
  color: var(--color-accent);
  font-weight: 900;
}

/* ---------- HEADER ---------- */
.c-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 200;
  pointer-events: none;
}
.c-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-block: clamp(0.8rem, 0.5rem + 1vw, 1.5rem);
  pointer-events: auto;
}
/* The fixed .c-header (z-index) is an isolated stacking context, so a child
   with mix-blend-mode:difference has nothing behind it to blend against and
   renders as its own colour — invisible on the light paper. This page's
   header always sits over light content, so use solid ink for the logo +
   nav instead of the blend. */
.c-header__inner.nav-blend {
  mix-blend-mode: normal;
  color: var(--color-ink);
}
.c-header__logo {
  font-size: clamp(1.6rem, 1.1rem + 1.6vw, 2.4rem);
  line-height: 1;
}
.c-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.7rem, 0.3rem + 1.4vw, 1.9rem);
  font-family: var(--font-sfx);
  font-size: clamp(0.85rem, 0.75rem + 0.4vw, 1.05rem);
}
.c-nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.c-nav a[aria-current="page"] { color: var(--color-accent); }

/* guaranteed-contrast fallback if mix-blend-mode is unavailable */
@supports not (mix-blend-mode: difference) {
  .c-header .nav-blend { mix-blend-mode: normal; color: var(--color-ink); }
}

/* ---------- HERO ---------- */
.c-hero {
  position: relative;
  display: grid;
  place-items: center;
  padding-block: clamp(6rem, 4rem + 8vw, 12rem) var(--space-6);
  overflow: hidden;
  isolation: isolate;
}
.c-hero__speed {
  position: absolute;
  inset: -30% -30% -10% -30%;
  z-index: -2;
  opacity: 0.7;
  -webkit-mask-image: radial-gradient(closest-side, #000 30%, transparent 78%);
  mask-image: radial-gradient(closest-side, #000 30%, transparent 78%);
}
.c-hero__ghost {
  position: absolute;
  z-index: -1;
  inset-block-start: 8%;
  inset-inline-end: -4%;
  font-size: clamp(6rem, 22vw, 26rem);
  line-height: 0.8;
  letter-spacing: -0.04em;
}
.c-hero__stage {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}
.c-hero__bubble {
  position: relative;
  width: min(92vw, 60rem);
  padding: clamp(1.6rem, 1rem + 3vw, 3.4rem) clamp(1.6rem, 1rem + 3vw, 3.6rem);
  text-align: center;
  transform: rotate(-1.5deg);
  box-shadow: 8px 10px 0 color-mix(in srgb, var(--color-ink) 14%, transparent);
}
.c-hero__kicker {
  margin-bottom: var(--space-2);
  color: color-mix(in srgb, var(--color-ink) 60%, transparent);
}
.c-hero__title {
  font-size: clamp(2.6rem, 1.4rem + 7vw, 6.6rem);
  line-height: 0.98;
  margin-inline: auto;
}
.c-hero__lead {
  margin: var(--space-3) auto 0;
  max-width: 40ch;
  font-size: var(--step-0);
  line-height: 1.95;
}
.c-hero__scroll {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  margin-top: var(--space-3);
  font-family: var(--font-sfx);
  font-size: var(--step--1);
  letter-spacing: 0.04em;
}
.c-hero__chev {
  display: inline-block;
  animation: hero-bob 1.8s var(--ease-in-out-quart) infinite;
}
@keyframes hero-bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(4px); }
}
/* speech-bubble tail pointing down toward the form */
.c-hero__tail {
  width: clamp(26px, 5vw, 46px);
  height: clamp(26px, 5vw, 46px);
  margin-top: -8px;
  background: var(--color-surface);
  border-right: 2px solid var(--color-ink);
  border-bottom: 2px solid var(--color-ink);
  transform: rotate(45deg);
  border-bottom-right-radius: 8px;
}
.c-hero__sfx {
  position: absolute;
  inset-block-start: 4%;
  inset-inline-start: 3%;
  z-index: 3;
  font-size: clamp(1.8rem, 1rem + 4vw, 4rem);
  pointer-events: none;
}
.c-hero__side {
  position: absolute;
  inset-block-start: 50%;
  transform: translateY(-50%);
  z-index: 1;
}
.c-hero__side--l { inset-inline-start: clamp(0.6rem, 2vw, 2.4rem); }
.c-hero__side--r { inset-inline-end: clamp(0.6rem, 2vw, 2.4rem); }
.c-hero__side .label {
  color: color-mix(in srgb, var(--color-ink) 72%, transparent);
  letter-spacing: 0.2em;
}

/* ---------- shared section rhythm ---------- */
.c-form,
.c-sns,
.c-faq {
  padding-block: clamp(4rem, 2.5rem + 8vw, 9rem);
}

/* ---------- FORM ---------- */
.c-form__grid {
  align-items: start;
  row-gap: var(--space-5);
}
.c-form__head {
  grid-column: 1 / 6;
  position: relative;
}
.c-form__num {
  display: block;
  color: color-mix(in srgb, var(--color-ink) 16%, transparent);
  margin-bottom: var(--space-1);
}
.c-form__title {
  font-size: clamp(2rem, 1.3rem + 3vw, 3.6rem);
  line-height: 1;
}
.c-form__lead {
  margin-top: var(--space-3);
  color: color-mix(in srgb, var(--color-ink) 82%, transparent);
}
.c-form__sidesfx {
  display: inline-block;
  margin-top: var(--space-3);
  font-size: clamp(1.4rem, 1rem + 2vw, 2.6rem);
}
.c-form__panelwrap {
  grid-column: 7 / 13;
}
.c-form__panel {
  border-radius: 28px;
  transform: rotate(1.2deg);
  box-shadow: 8px 10px 0 color-mix(in srgb, var(--color-ink) 12%, transparent);
  background:
    radial-gradient(color-mix(in srgb, var(--color-ink) 8%, transparent) 1.1px, transparent 1.4px) 0 0 / 14px 14px,
    var(--color-surface);
}
.c-form__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.c-form__row {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.c-form__label {
  font-family: var(--font-sfx);
  font-size: var(--step-0);
  letter-spacing: 0.02em;
}
.c-form__req { color: var(--color-accent); margin-inline-start: 0.25em; }
.field::placeholder {
  color: color-mix(in srgb, var(--color-ink) 42%, transparent);
}
.c-form__actions {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-2);
}
.c-form__send { font-size: var(--step-1); }
.c-form__sendicon { font-size: 0.9em; }
.c-form__pop {
  font-size: clamp(1.4rem, 1rem + 2vw, 2.4rem);
  opacity: 0;
  pointer-events: none;
}
.c-form__status {
  margin-top: var(--space-1);
  padding: var(--space-2) var(--space-3);
  background: color-mix(in srgb, var(--color-accent) 12%, var(--color-surface));
  border: 2px solid var(--color-accent);
  border-radius: 16px;
  font-weight: 700;
  font-size: var(--step-0);
}

/* ---------- SNS ---------- */
.c-sns__head {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}
.c-sns__num { color: color-mix(in srgb, var(--color-ink) 16%, transparent); }
.c-sns__title { font-size: clamp(2rem, 1.3rem + 3vw, 3.6rem); }
.c-sns__item--last { display: block; }
.c-sns__link {
  display: grid;
  grid-template-columns: auto minmax(9rem, 14rem) 1fr;
  align-items: center;
  gap: clamp(0.8rem, 0.4rem + 1.4vw, 2rem);
  padding-block: clamp(0.9rem, 0.6rem + 1vw, 1.6rem);
  min-height: 44px;
  background-image: none; /* opt out of global auto-underline; use custom below */
  transition: transform var(--dur-1) var(--ease-out-expo),
              color var(--dur-1) var(--ease-out-expo);
}
.c-sns__link:hover,
.c-sns__link:focus-visible { transform: translateX(10px); }
.c-sns__link:hover .c-sns__handle,
.c-sns__link:focus-visible .c-sns__handle { color: var(--color-accent); }
.c-sns__icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 2px solid var(--color-ink);
  border-radius: 50%;
  color: var(--color-ink);
  transition: background-color var(--dur-1) var(--ease-out-expo),
              color var(--dur-1) var(--ease-out-expo);
}
.c-sns__link:hover .c-sns__icon,
.c-sns__link:focus-visible .c-sns__icon {
  background: var(--color-accent);
  color: var(--color-bg);
}
.c-sns__where {
  font-family: var(--font-sfx);
  font-size: var(--step-1);
}
.c-sns__handle {
  position: relative;
  font-weight: 500;
  font-size: var(--step-0);
  color: color-mix(in srgb, var(--color-ink) 74%, transparent);
  transition: color var(--dur-1) var(--ease-out-expo);
}
/* left-drawn underline on the handle */
.c-sns__handle::after {
  content: '';
  position: absolute;
  left: 0; bottom: -0.15em;
  width: 100%; height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-1) var(--ease-out-expo);
}
.c-sns__link:hover .c-sns__handle::after,
.c-sns__link:focus-visible .c-sns__handle::after { transform: scaleX(1); }
.c-sns__note {
  margin-top: var(--space-4);
  font-size: var(--step-1);
  max-width: 44ch;
}

/* ---------- FAQ ---------- */
.c-faq {
  position: relative;
  background:
    radial-gradient(color-mix(in srgb, var(--color-ink) 7%, transparent) 1.2px, transparent 1.5px) 0 0 / 12px 12px;
}
.c-faq__head {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-5);
}
.c-faq__num { color: color-mix(in srgb, var(--color-ink) 16%, transparent); }
.c-faq__title { font-size: clamp(2rem, 1.3rem + 3vw, 3.6rem); }
.c-faq__sfx { font-size: clamp(1.2rem, 0.9rem + 1.6vw, 2.2rem); }
.c-faq__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  counter-reset: faq;
}
.c-faq__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}
.c-faq__pair:nth-child(odd)  .c-faq__inner { transform: rotate(-1.4deg); }
.c-faq__pair:nth-child(even) .c-faq__inner { transform: rotate(1.4deg); }
.c-faq__q,
.c-faq__a {
  position: relative;
  max-width: 46ch;
  padding: clamp(1rem, 0.7rem + 1.4vw, 1.8rem) clamp(1.2rem, 0.8rem + 1.6vw, 2.2rem);
  font-size: var(--step-0);
  line-height: 1.85;
}
.c-faq__q {
  justify-self: start;
  background: var(--color-bg);
  font-weight: 700;
}
.c-faq__a {
  justify-self: end;
  background: var(--color-surface);
}
.c-faq__mark {
  font-family: var(--font-display);
  font-size: 1.5em;
  line-height: 1;
  margin-inline-end: 0.4em;
  vertical-align: -0.12em;
  color: var(--color-accent);
}
.c-faq__a .c-faq__mark { color: var(--color-ink); }
/* spiky bubble (Q) — jagged edge via clip-path */
.bubble--spiky {
  border: 2px solid var(--color-ink);
  border-radius: 0;
  clip-path: polygon(
    0% 8%, 6% 0%, 14% 7%, 24% 0%, 34% 7%, 46% 0%, 58% 7%, 70% 0%, 82% 7%, 92% 0%, 100% 8%,
    96% 22%, 100% 38%, 95% 54%, 100% 70%, 96% 86%, 100% 100%,
    86% 94%, 74% 100%, 62% 94%, 50% 100%, 38% 94%, 26% 100%, 14% 94%, 4% 100%, 0% 88%,
    5% 70%, 0% 54%, 5% 38%, 0% 22%
  );
}

/* ---------- panel ink-in helper (JS sets clip-path) ---------- */
[data-panel] { will-change: clip-path; }

/* ---------- FOOTER ---------- */
.c-footer {
  position: relative;
  padding-top: var(--space-6);
  padding-bottom: var(--space-4);
  overflow: hidden;
}
.c-footer__rule { margin-bottom: var(--space-5); }
.c-footer__top {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
}
.c-footer__title {
  font-size: clamp(2.2rem, 1.4rem + 4vw, 4.6rem);
  line-height: 0.98;
}
.c-footer__body {
  margin-top: var(--space-2);
  max-width: 34ch;
  color: color-mix(in srgb, var(--color-ink) 80%, transparent);
}
.c-footer__nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  font-family: var(--font-sfx);
  font-size: var(--step-1);
  text-align: right;
}
.c-footer__nav a { min-height: 44px; display: inline-flex; align-items: center; justify-content: flex-end; }
.c-footer__nav a[aria-current="page"] { color: var(--color-accent); }
.c-footer__contact {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5em 0.8em;
  margin-top: var(--space-5);
  font-family: var(--font-body);
  font-weight: 700;
  letter-spacing: 0.04em;
  font-size: var(--step--1);
  color: color-mix(in srgb, var(--color-ink) 66%, transparent);
}
.c-footer__mark {
  margin-top: var(--space-4);
  line-height: 0.72;
  overflow: hidden;
}
.c-footer__word {
  display: block;
  font-size: clamp(4rem, 15vw, 13rem);
  line-height: 0.72;
  letter-spacing: -0.03em;
  color: var(--color-ink);
  transform: translateX(-1.5%);
  white-space: nowrap;
}
.c-footer__marquee {
  margin-block: var(--space-3);
  border-block: 1px solid var(--hairline);
  padding-block: var(--space-2);
}
.c-footer__marquee .sfx { font-size: clamp(1.4rem, 1rem + 2vw, 2.6rem); }
.c-footer__meta {
  color: color-mix(in srgb, var(--color-ink) 50%, transparent);
}

/* ============================================================
   RESPONSIVE STAGES — every breakpoint is a designed state
   ============================================================ */

/* wide screens: keep the composition inside the shell, let gutters breathe.
   Scale the bubble + speedline field with the viewport and firm up the
   vertical marginalia so the wide view reads as composed, not swimming. */
@media (min-width: 2000px) {
  .c-hero__bubble {
    width: min(74vw, 66rem);
    padding-block: clamp(3rem, 4vw, 4.4rem);
  }
  .c-hero__title { font-size: clamp(5rem, 5.6vw, 7.4rem); }
  .c-hero__speed { inset: -18% -8% -8% -8%; opacity: 0.85; }
  .c-hero__side .label { font-size: var(--step-0); letter-spacing: 0.24em; }
  .c-hero__side--l { inset-inline-start: clamp(2rem, 5vw, 6rem); }
  .c-hero__side--r { inset-inline-end: clamp(2rem, 5vw, 6rem); }
  .c-hero__ghost { font-size: clamp(18rem, 22vw, 28rem); }
}

@media (max-width: 1024px) {
  .c-form__head { grid-column: 1 / 5; }
  .c-form__panelwrap { grid-column: 6 / 13; }
}

@media (max-width: 720px) {
  .c-header__inner { padding-block: 0.7rem; }
  .c-hero__side { display: none; }
  .c-hero__bubble { transform: rotate(-1deg); box-shadow: 5px 6px 0 color-mix(in srgb, var(--color-ink) 14%, transparent); }
  .c-hero__ghost { inset-block-start: 14%; font-size: 40vw; }

  /* grids collapse to a designed single column */
  .c-form__grid { grid-template-columns: 1fr; }
  .c-form__head { grid-column: 1 / -1; }
  .c-form__panelwrap { grid-column: 1 / -1; }
  .c-form__panel { transform: rotate(0.6deg); }

  .c-sns__link {
    grid-template-columns: auto 1fr;
    grid-template-areas: 'icon where' 'icon handle';
    row-gap: 0.15rem;
    column-gap: 1rem;
  }
  .c-sns__icon { grid-area: icon; align-self: center; }
  .c-sns__where { grid-area: where; }
  .c-sns__handle { grid-area: handle; }
  .c-sns__link:hover,
  .c-sns__link:focus-visible { transform: translateX(5px); }

  .c-faq__q, .c-faq__a { max-width: 100%; }
  .c-faq__a { justify-self: start; }

  .c-footer__top { flex-direction: column; }
  .c-footer__nav { text-align: left; }
  .c-footer__nav a { justify-content: flex-start; }
}

@media (max-width: 480px) {
  .c-hero__sfx { font-size: 2.2rem; inset-inline-start: 6%; }
  .c-nav { gap: 0.7rem; }
  .c-form__panel { padding: var(--space-3); }
}

/* reduced motion: neutralise bob + settle tilts a touch */
@media (prefers-reduced-motion: reduce) {
  .c-hero__chev { animation: none !important; }
}